Lift truck



Nov. 15, 1949 s. w. WYSOCKI 2,488,461

LIFT TRUCK Filed Dec. 4, 1947 s Sheets-Sheet Stanley W. Wysock/JNVENTOR.

Nov. 15, 1949 s. w. WYSOCKI 2,483,451

' LIFT wnucx Filed Dec. 4, 1947 s Sheets-Sheet 2 no Ian/' on as] Fig.2.5

BY [I Nov. 15, 1949 s. w. wYsocKl LIFT TRUCK 3 Sheets-Sheet 3 Filed Dec.4, 1947 Stanley W. Wysocki I INVENTOR.

BY W

Patented Nov. 15, 1949 UNITED STAT ES PATENT OFFICE LIFT TRI-IGK.

Stanley. W; Wysoclii, Milwaukee, Wis.. Application December 4, 1941-,sea-arm- 789,143;

3 Claims. 7 1

This invention; appertains. to.- novel anduseful improvements inmanually. operated. lifts; and} trucks. An object. of this. invention:isto provide a. combination lift and truck including improved actuationmeans for the lift.

. Another object of; this. invention is. to providemeansfor maintaining.the. truck in selected positions.

7 Anotherpurpose of this, invention is; to. provide;- frictionconducive, resiliently biased. means. as;- sociated with the saidstand,

Another purpose of; this.- invention. is-to raiseand. lower a. frame:member. in a; suitable. support and maintain, the; frame in.-s elected.elevated. positions.

Another purpose of this. invention, isto provide anextremely simpledevice of.- the. character. described. capable of. lifting packages. andother impedimentai and" transporting the same manually.

Ancillary objects and features of. novelty will become apparent to.-those skilled; in. the art, such as simplicity of construction and ease.of. mannefacture, in following the. descriptionof: the pre ferred. formsof the; present. invention,, illustrated in. the accompanying drawings,wherein-.-

Figure 1. is an. elevational. side view of the present invention;

- Figure 2 is, afront. View of. the inventionshown in Figural;

Figure 3 is a sectionaliview;takensubstantiallx on the 1ine3.3; of..Figural. and in the direction of the arrows;

Figure 4 is a sectionalaview takenzsubstantially n. the line 4-4 ofFigure 3 and in the direction of the-arrows;

Figure 5 is an enlarged fragmentary view illus= trating a guide'utilizedinassociation. with the invention and forming a portion thereof;

Figure 6 is an enlargedlsectional view: taken substantially, on the line66 of Figures andf in the. direction. of'the arrows;

' Figure 7 is a" transverse'sectional view? taken substantially on' thelinel' Iof-Figure3- and in the direction of the. arrows Figure. 8 is asectional view illustrating the. friction conducive meansutilizedinassociation with the present invention;

Figure 9 is a sectional view of a modified form of the invention,substituting gear means for the chain illustrated in Figure 3, and; 4

Figure 10 is a sectional view taken substantially on the line I0l0 ofFigure 9 and in the direction of the arrows.

invention has been developed to. provide a device for the purpose oflifting, and transporting as well as loading: various types ofimpedimenta. The preferred forms of the invention havebeendeveloped-with an attempt of.

simplicity for: facility in manufacture. As is well known conventionaltrucks: simply transport i-mpedimentai from oneposition. to another.This invention. is-adapted; to lift. and lower the impedimentav before.andror after transportation thereof.. Attempt. has been made toprovide.a combinatiom device such as.- that disclosed by the applicant however;the. complexity of' structure was usually prohibitive In; this inventionsimpl-icity is achieved.

Referring; now to the. first form of the present invention. there isdisclosed a. support generally indicated at [ll which: includes; a backmember composed: ofa: pain of nails I12: and M- respectively havingcross-braces Hi associated therewith. A base includlnga metallicplatform 20 is provided ail-the: lower. portionot the rails l2 and I4and has a suitable; cross member 2-2.. therein: for additional.rigidity. Conventional handles 24 may extend from;- the rails for the.obvious. purpose.

of; manipulation. of: the invention. Brackets 26. extend fromthe; lower.portion of the said. rails 1m order to journal: wheels: 2-8 therebyrendering a. device. mobile.

A=.pa-ir of legs. 301f0rm' a. stand for use. in. as-; sociation with thepresent invention and these legsmay be connected. by various. crossmembers including a. truss: element 32. Thistruss'element en ages. oneof the. cross braces l6 and is. jour-- naled: therearound. Qf. course.suitable resilient feet-.34;- may beisupplied-i at the terminalportions. of the legs for additional friction.

In utility; of: theinvention.- the stand including the legs? 3.0. may beutilized as illustrated in Figural... Friction conducive-means issupplied in order to lock the said stand. i-n a selected. posi, tion.The said; frictionv conducive means consists of a case 36irigidlysecured to the truss member 32': and a plunger 38: extending through thecase and also the element 32. This/plunger hasaspring-AU normallybiasing; it outwardly'of thesaid case andani; adjustable screw 41thread-= edl-p'received; in. the: saidcase and;- for. the. purpose of;seating. the spring; A- legsupport elementw l lemaysbe supplied inassociation. with the. said stand and retained therein by any suitablelatch means.

A frame generally indicated at 46 is supplied in association with thesaid support and is slidable relative thereto. This frame includes apair of rails 18 and 50 respectively having enlarged lower portionsslidably seated in said rails 12 and [4 respectively. A pair of fishplates 52 and 54 respectively are secured to the lowermost portions ofthe said rails 48 and 50 and a base portion of the said frame extendstherefrom. This base portion is simply a platform 58 having a stiffeningmember 60 extending thereacross. This stiffening member is adapted toseat in the suitable aperture or slot in the said base 20 and the entireextension 58 is seated in a suitable recess in the said base 20.

Means for raising and lowering the said frame 46 is provided. It is inthe raising and lowering means that the embodiment of ,the inventionshown in Figure 3 differs from that embodiment illustrated in Figure 9.Taking first that embodiment shown in Figure 3, it will be seen that ashaft 62 is journaled in,the support and has a suitable handle 64thereon. This shaft 62 has a pair of gears 68 and 68 respectivelyrigidly secured thereto.

A pair of brackets Ill and 12 respectively are seated on a suitablecross member '14 of the said support and a pair of shafts or axles 16and 18 are journaled therein. Knobs 80 may be supplied at the terminalportions of the said axles for rotation thereof and a dog 82 is rigidlysecured to each of the said axles. This dog is engageable with the teethof a ratchet gear 84, two of which are supplied on the said shaft 62. Itis readily apparent that by utility of this construction the shaft 62may be maintained in a selected position, when so desired. This portionof the actuation means is common to both embodiments of the inventionand the differentiating features may now readily be ascertainable aschain means for raising and lowering the frame and a rack gear means forperforming the same function.

In the chain means it will be noted that a conventional link chain 98extends around each of the said gears 66 and 68 and also around an idlergear 92 also supported in the said support. Of course, two idler gearsare supplied, one for each chain in the connection. A small brackethaving a U-bolt 94 extending therethrough is supplied for securing thesaid frame to the said chain 90. This small bracket 96 may be seen as aplate extending around the chain with the U-bolt extending through thesaid plate and the said frame.

The embodiment of the invention illustrated in Figure 9 shows arelatively large rack gear I engaging the said gear means 66 (and asecond rack gear unshown engaging the other gear 68). Of course, therack gears are rigidly secured to the said frame 46 for liftingpurposes.

While there has been described and illustrated but preferred forms ofthe invention, it is apparent that variations may be made withoutdeparting from the spirit thereof.

Accordingly, limitation is sought only in accordance with the scope ofthe following claims.

Having described the invention, what is claimed as new is:

1. A combination lift and hand truck comprising a support includingwheels and a base, a pair of rails in said support having a frameslidably received therein, mechanical means journaled in said supportfor raising and lowering said frame,

. ing said stand in selected positions.

2. A combination lift and hand truck comprising a support includingwheels and a base, a pair of rails forming a part of said support, aframe slidably disposed in said rails, mechanical means journaled insaid support for raising and lowering said frame, said mechanical meansincluding a rack disposed in one of said rails and fixed to said frame,a shaft rotatably carried by said support and having a gear adjacent oneend engaging the teeth of said rack, means for retaining said frame inselected position with respect to said support including bracketssecured to said support having an axle journaled therein, a dog securedto said axle, a ratchet gear fixed to said last-mentioned shaft andoperatively engaging said dog, a pivotally mounted stand operativelyconnected with said support, and resiliently biased friction conducivemeans for locking said stand in selected positions.

3. A combination lift and hand truck comprising a support which includeswheels and a base, a pair of rails secured to said support, a frameslidably disposed in said rails, mechanical means journaled in saidsupport for raising and lowering said frame, said mechanical meansincluding a shaft mounted for rotation in said support and having a gearat one end, a second shaft mounted A for rotation in said support andhaving a second gear disposed thereon, a chain entrained around saidgears, means fixing said frame to said chain, and means secured to saidsupport for retaining said frame in selected positions with respect tosaidsupport including a bracket secured to said support having an axlejournaled therein, a dog secured to said axle, a ratchet gear secured toone of said shafts and operatively engaging said dog, a pivotallymounted stand operatively connected with said support, and resilientlybiased friction conducive means for locking said standard in selectedposition.

STANLEY W. WYSOCKI.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 342,950 Caldwell June 1, 1886393,293 Campbell Nov. 20, 1888 474,653 Defiier May 10, 1892 513,201Robinson et al Jan. 23, 1894 FOREIGN PATENTS Number Country Date 351,771Great Britain July 2, 1931

